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Restructuring And Other Initiatives (Narrative) (Details) (USD $)	3 Months Ended	12 Months Ended			60 Months Ended
	May 02, 2015	Dec. 12, 2019	Dec. 11, 2018	Dec. 11, 2017	Dec. 11, 2017	Dec. 12, 2014
Restructuring and Related Cost [Line Items]
Portfolio realignment costs	$ 0
Note receivable						$ 7,500,000
Promissory note interest rate		9.00%cal_PromissoryNoteInterestRate	8.00%cal_PromissoryNoteInterestRate	7.00%cal_PromissoryNoteInterestRate	6.00%cal_PromissoryNoteInterestRate

An amount representing an agreement for an unconditional promise by the maker to pay the Company (holder) a definite sum of money within one year from the balance sheet date (or the normal operating cycle, whichever is longer), net of any write-downs taken for collection uncertainty on the part of the holder. Such amount may include accrued interest receivable in accordance with the terms of the debt. The debt also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. This amount does not include amounts related to receivables held-for-sale.

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